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Original commit message from CVS: * ext/amrwb/gstamrwbdec.c: (gst_amrwbdec_init): * ext/amrwb/gstamrwbenc.c: (gst_amrwbenc_init): * ext/amrwb/gstamrwbparse.c: (gst_amrwbparse_init): * ext/audioresample/gstaudioresample.c: * ext/bz2/gstbz2dec.c: (gst_bz2dec_init): * ext/bz2/gstbz2enc.c: (gst_bz2enc_init): * ext/divx/gstdivxdec.c: (gst_divxdec_init): * ext/divx/gstdivxenc.c: (gst_divxenc_init): * ext/faac/gstfaac.c: (gst_faac_init): * ext/gsm/gstgsmdec.c: (gst_gsmdec_init): * ext/gsm/gstgsmenc.c: (gst_gsmenc_init): * ext/hermes/gsthermescolorspace.c: (gst_hermes_colorspace_init): * ext/lcs/gstcolorspace.c: (gst_colorspace_init): * ext/libfame/gstlibfame.c: (gst_fameenc_init): * ext/snapshot/gstsnapshot.c: (gst_snapshot_init): * ext/spc/gstspc.c: (gst_spc_dec_init): * ext/swfdec/gstswfdec.c: (gst_swfdec_init): * ext/xvid/gstxvidenc.c: (gst_xvidenc_init): * gst/cdxaparse/gstcdxaparse.c: (gst_cdxa_parse_init): * gst/cdxaparse/gstcdxastrip.c: (gst_cdxastrip_init): * gst/chart/gstchart.c: (gst_chart_init): * gst/colorspace/gstcolorspace.c: (gst_colorspace_init): * gst/festival/gstfestival.c: (gst_festival_init): * gst/freeze/gstfreeze.c: (gst_freeze_init): * gst/mixmatrix/mixmatrix.c: (gst_mixmatrix_request_new_pad): * gst/mpeg1sys/gstmpeg1systemencode.c: (gst_system_encode_init): * gst/mpeg2sub/gstmpeg2subt.c: (gst_mpeg2subt_init): * gst/nsf/gstnsf.c: (gst_nsfdec_init): * gst/overlay/gstoverlay.c: (gst_overlay_init): * gst/passthrough/gstpassthrough.c: (passthrough_init): * gst/playondemand/gstplayondemand.c: (play_on_demand_init): * gst/smooth/gstsmooth.c: (gst_smooth_init): * gst/smoothwave/gstsmoothwave.c: (gst_smoothwave_init): * gst/speed/gstspeed.c: (speed_init): * gst/vbidec/gstvbidec.c: (gst_vbidec_init): * gst/videodrop/gstvideodrop.c: (gst_videodrop_init): * sys/dxr3/dxr3spusink.c: (dxr3spusink_init): * sys/dxr3/dxr3videosink.c: (dxr3videosink_init): * sys/qcam/gstqcamsrc.c: (gst_qcamsrc_init): Fix leaks.
570 lines
17 KiB
C
570 lines
17 KiB
C
/* GStreamer
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* Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/audio/audio.h>
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#include "gstplayondemand.h"
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/* in these files, a 'tick' is a discrete unit of time, usually around the 1ms
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* range. a tick is not divisible into smaller units of time. 1ms is probably
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* way beyond what a real computer can actually keep track of, but hey ... */
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/* some default values */
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#define GST_POD_MAX_PLAYS 100 /* maximum simultaneous plays */
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#define GST_POD_BUFFER_TIME 5.0 /* buffer length in seconds */
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#define GST_POD_TICK_RATE 1e-6 /* ticks per second */
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/* buffer pool fallback values ... use if no buffer pool is available */
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#define GST_POD_BUFPOOL_SIZE 4096
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#define GST_POD_BUFPOOL_NUM 6
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static const GstElementDetails play_on_demand_details =
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GST_ELEMENT_DETAILS ("Play On Demand",
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"Filter/Editor/Audio",
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"Schedule a stream to play at specific times, or when a signal is received",
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"Leif Morgan Johnson <leif@ambient.2y.net>");
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static GstStaticPadTemplate play_on_demand_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
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GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS)
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);
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static GstStaticPadTemplate play_on_demand_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
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GST_AUDIO_FLOAT_STANDARD_PAD_TEMPLATE_CAPS)
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);
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/* GObject functionality */
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static void play_on_demand_class_init (GstPlayOnDemandClass * klass);
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static void play_on_demand_base_init (GstPlayOnDemandClass * klass);
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static void play_on_demand_init (GstPlayOnDemand * filter);
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static void play_on_demand_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void play_on_demand_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void play_on_demand_finalize (GObject * object);
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/* GStreamer functionality */
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static GstPadLinkReturn play_on_demand_pad_link (GstPad * pad,
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const GstCaps * caps);
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static void play_on_demand_loop (GstElement * elem);
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static void play_on_demand_set_clock (GstElement * elem, GstClock * clock);
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/* signal handlers */
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static void play_on_demand_play_handler (GstElement * elem);
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static void play_on_demand_clear_handler (GstElement * elem);
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static void play_on_demand_reset_handler (GstElement * elem);
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/* utility functions */
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static void play_on_demand_add_play_pointer (GstPlayOnDemand * filter,
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guint pos);
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static void play_on_demand_resize_buffer (GstPlayOnDemand * filter);
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GType
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gst_play_on_demand_get_type (void)
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{
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static GType play_on_demand_type = 0;
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if (!play_on_demand_type) {
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static const GTypeInfo play_on_demand_info = {
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sizeof (GstPlayOnDemandClass),
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(GBaseInitFunc) play_on_demand_base_init,
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NULL,
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(GClassInitFunc) play_on_demand_class_init,
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NULL,
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NULL,
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sizeof (GstPlayOnDemand),
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0,
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(GInstanceInitFunc) play_on_demand_init,
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};
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play_on_demand_type = g_type_register_static (GST_TYPE_ELEMENT,
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"GstPlayOnDemand", &play_on_demand_info, 0);
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}
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return play_on_demand_type;
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}
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/* signals and properties */
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enum
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{
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/* add signals here */
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PLAYED_SIGNAL,
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STOPPED_SIGNAL,
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PLAY_SIGNAL,
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CLEAR_SIGNAL,
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RESET_SIGNAL,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_MUTE,
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PROP_BUFFER_TIME,
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PROP_MAX_PLAYS,
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PROP_TICK_RATE,
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PROP_TOTAL_TICKS,
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PROP_TICKS
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};
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static guint gst_pod_filter_signals[LAST_SIGNAL] = { 0 };
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static GstElementClass *parent_class = NULL;
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static void
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play_on_demand_base_init (GstPlayOnDemandClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&play_on_demand_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&play_on_demand_sink_template));
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gst_element_class_set_details (element_class, &play_on_demand_details);
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}
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static void
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play_on_demand_class_init (GstPlayOnDemandClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gst_pod_filter_signals[PLAYED_SIGNAL] =
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g_signal_new ("played", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPlayOnDemandClass, played),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_pod_filter_signals[STOPPED_SIGNAL] =
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g_signal_new ("stopped", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPlayOnDemandClass, stopped),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_pod_filter_signals[PLAY_SIGNAL] =
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g_signal_new ("play", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPlayOnDemandClass, play),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_pod_filter_signals[CLEAR_SIGNAL] =
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g_signal_new ("clear", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPlayOnDemandClass, clear),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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gst_pod_filter_signals[RESET_SIGNAL] =
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g_signal_new ("reset", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstPlayOnDemandClass, reset),
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NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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klass->play = play_on_demand_play_handler;
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klass->clear = play_on_demand_clear_handler;
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klass->reset = play_on_demand_reset_handler;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->set_property = play_on_demand_set_property;
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gobject_class->get_property = play_on_demand_get_property;
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gobject_class->finalize = play_on_demand_finalize;
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gstelement_class->set_clock = play_on_demand_set_clock;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MUTE,
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g_param_spec_boolean ("mute", "Silence output", "Do not output any sound",
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FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_TIME,
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g_param_spec_float ("buffer-time", "Buffer length in seconds",
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"Number of seconds of audio the buffer holds", 0.0, G_MAXFLOAT,
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GST_POD_BUFFER_TIME, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MAX_PLAYS,
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g_param_spec_uint ("max-plays", "Maximum simultaneous playbacks",
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"Maximum allowed number of simultaneous plays from the buffer", 1,
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G_MAXUINT, GST_POD_MAX_PLAYS, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TICK_RATE,
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g_param_spec_float ("tick-rate", "Tick rate (ticks/second)",
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"The rate of musical ticks, the smallest time unit in a song", 0,
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G_MAXFLOAT, GST_POD_TICK_RATE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TOTAL_TICKS,
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g_param_spec_uint ("total-ticks", "Total number of ticks",
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"Total number of ticks in the tick array", 1, G_MAXUINT, 1,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TICKS,
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g_param_spec_pointer ("ticks", "Ticks to play sample on",
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"An array of ticks (musical times) at which to play the sample",
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G_PARAM_READWRITE));
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}
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static void
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play_on_demand_init (GstPlayOnDemand * filter)
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{
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filter->srcpad =
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gst_pad_new_from_static_template (&play_on_demand_src_template, "src");
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filter->sinkpad =
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gst_pad_new_from_static_template (&play_on_demand_sink_template, "sink");
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gst_pad_set_link_function (filter->sinkpad, play_on_demand_pad_link);
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gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
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gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
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gst_element_set_loop_function (GST_ELEMENT (filter), play_on_demand_loop);
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filter->clock = NULL;
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filter->rate = 0;
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filter->ticks = g_new (guint32, filter->total_ticks / 32 + 1);
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filter->plays = g_new (guint, filter->max_plays);
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play_on_demand_resize_buffer (filter);
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play_on_demand_reset_handler (GST_ELEMENT (filter));
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}
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static void
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play_on_demand_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstPlayOnDemand *filter;
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register guint i;
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guint new_size, min_size, *new_plays;
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guint *new_ticks;
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g_return_if_fail (GST_IS_PLAYONDEMAND (object));
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filter = GST_PLAYONDEMAND (object);
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switch (prop_id) {
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case PROP_MUTE:
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filter->mute = g_value_get_boolean (value);
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break;
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case PROP_BUFFER_TIME:
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filter->buffer_time = g_value_get_float (value);
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play_on_demand_resize_buffer (filter);
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/* clear out now-invalid play pointers */
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for (i = 0; i < filter->max_plays; i++)
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filter->plays[i] = G_MAXUINT;
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break;
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case PROP_MAX_PLAYS:
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new_size = g_value_get_uint (value);
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min_size = (new_size < filter->max_plays) ? new_size : filter->max_plays;
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new_plays = g_new (guint, new_size);
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for (i = 0; i < min_size; i++)
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new_plays[i] = filter->plays[i];
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for (i = min_size; i < new_size; i++)
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new_plays[i] = G_MAXUINT;
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g_free (filter->plays);
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filter->plays = new_plays;
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filter->max_plays = new_size;
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break;
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case PROP_TICK_RATE:
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filter->tick_rate = g_value_get_float (value);
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break;
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case PROP_TOTAL_TICKS:
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new_size = g_value_get_uint (value);
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min_size =
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(new_size < filter->total_ticks) ? new_size : filter->total_ticks;
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new_ticks = g_new (guint32, new_size / 32 + 1);
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for (i = 0; i <= min_size / 32; i++)
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new_ticks[i] = filter->ticks[i];
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for (i = min_size / 32 + 1; i <= new_size / 32; i++)
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new_ticks[i] = 0;
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g_free (filter->ticks);
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filter->ticks = new_ticks;
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filter->total_ticks = new_size;
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break;
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case PROP_TICKS:
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new_ticks = (guint *) g_value_get_pointer (value);
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if (new_ticks) {
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g_free (filter->ticks);
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filter->ticks = new_ticks;
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}
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break;
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default:
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break;
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}
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}
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static void
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play_on_demand_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstPlayOnDemand *filter;
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g_return_if_fail (GST_IS_PLAYONDEMAND (object));
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filter = GST_PLAYONDEMAND (object);
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switch (prop_id) {
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case PROP_MUTE:
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g_value_set_boolean (value, filter->mute);
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break;
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case PROP_BUFFER_TIME:
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g_value_set_float (value, filter->buffer_time);
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break;
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case PROP_MAX_PLAYS:
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g_value_set_uint (value, filter->max_plays);
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break;
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case PROP_TICK_RATE:
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g_value_set_float (value, filter->tick_rate);
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break;
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case PROP_TOTAL_TICKS:
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g_value_set_uint (value, filter->total_ticks);
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break;
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case PROP_TICKS:
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g_value_set_pointer (value, (gpointer) filter->ticks);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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play_on_demand_finalize (GObject * object)
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{
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GstPlayOnDemand *filter = GST_PLAYONDEMAND (object);
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g_free (filter->ticks);
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g_free (filter->plays);
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g_free (filter->buffer);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static GstPadLinkReturn
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play_on_demand_pad_link (GstPad * pad, const GstCaps * caps)
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{
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const gchar *mimetype;
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GstPlayOnDemand *filter;
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GstStructure *structure;
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g_return_val_if_fail (caps != NULL, GST_PAD_LINK_DELAYED);
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g_return_val_if_fail (pad != NULL, GST_PAD_LINK_DELAYED);
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filter = GST_PLAYONDEMAND (GST_PAD_PARENT (pad));
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structure = gst_caps_get_structure (caps, 0);
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mimetype = gst_structure_get_name (structure);
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gst_structure_get_int (structure, "rate", &filter->rate);
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gst_structure_get_int (structure, "channels", &filter->channels);
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if (strcmp (mimetype, "audio/x-raw-int") == 0) {
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filter->format = GST_PLAYONDEMAND_FORMAT_INT;
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gst_structure_get_int (structure, "width", &filter->width);
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} else if (strcmp (mimetype, "audio/x-raw-float") == 0) {
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filter->format = GST_PLAYONDEMAND_FORMAT_FLOAT;
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}
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|
|
|
play_on_demand_resize_buffer (filter);
|
|
|
|
return gst_pad_try_set_caps (filter->srcpad, caps);
|
|
}
|
|
|
|
inline static void
|
|
play_on_demand_add_play_pointer (GstPlayOnDemand * filter, guint pos)
|
|
{
|
|
register guint i;
|
|
|
|
if (filter->rate && ((filter->buffer_time * filter->rate) > pos)) {
|
|
for (i = 0; i < filter->max_plays; i++) {
|
|
if (filter->plays[i] == G_MAXUINT) {
|
|
filter->plays[i] = pos;
|
|
/* emit a signal to indicate a sample being played */
|
|
g_signal_emit (filter, gst_pod_filter_signals[PLAYED_SIGNAL], 0);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
play_on_demand_loop (GstElement * elem)
|
|
{
|
|
GstPlayOnDemand *filter = GST_PLAYONDEMAND (elem);
|
|
guint num_in, num_out, num_filter;
|
|
GstData *in = NULL;
|
|
GstBuffer *out = NULL;
|
|
static guint last_tick = 0;
|
|
|
|
g_return_if_fail (filter != NULL);
|
|
g_return_if_fail (GST_IS_PLAYONDEMAND (filter));
|
|
|
|
in = (in == NULL && !filter->eos) ? gst_pad_pull (filter->sinkpad) : NULL;
|
|
|
|
if (filter->format == GST_PLAYONDEMAND_FORMAT_INT) {
|
|
if (filter->width == 16) {
|
|
gint16 min = 0xffff;
|
|
gint16 max = 0x7fff;
|
|
gint16 zero = 0;
|
|
|
|
#define _TYPE_ gint16
|
|
#include "filter.func"
|
|
#undef _TYPE_
|
|
} else if (filter->width == 8) {
|
|
gint8 min = 0xff;
|
|
gint8 max = 0x7f;
|
|
gint8 zero = 0;
|
|
|
|
#define _TYPE_ gint8
|
|
#include "filter.func"
|
|
#undef _TYPE_
|
|
}
|
|
} else if (filter->format == GST_PLAYONDEMAND_FORMAT_FLOAT) {
|
|
gfloat min = -1.0;
|
|
gfloat max = 1.0;
|
|
gfloat zero = 0.0;
|
|
|
|
#define _TYPE_ gfloat
|
|
#include "filter.func"
|
|
#undef _TYPE_
|
|
}
|
|
}
|
|
|
|
static void
|
|
play_on_demand_set_clock (GstElement * elem, GstClock * clock)
|
|
{
|
|
GstPlayOnDemand *filter;
|
|
|
|
g_return_if_fail (elem != NULL);
|
|
g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
|
|
filter = GST_PLAYONDEMAND (elem);
|
|
|
|
filter->clock = clock;
|
|
}
|
|
|
|
static void
|
|
play_on_demand_play_handler (GstElement * elem)
|
|
{
|
|
GstPlayOnDemand *filter;
|
|
|
|
g_return_if_fail (elem != NULL);
|
|
g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
|
|
filter = GST_PLAYONDEMAND (elem);
|
|
|
|
play_on_demand_add_play_pointer (filter, 0);
|
|
}
|
|
|
|
static void
|
|
play_on_demand_clear_handler (GstElement * elem)
|
|
{
|
|
GstPlayOnDemand *filter;
|
|
register guint i;
|
|
|
|
g_return_if_fail (elem != NULL);
|
|
g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
|
|
filter = GST_PLAYONDEMAND (elem);
|
|
|
|
filter->write = 0;
|
|
filter->eos = FALSE;
|
|
|
|
for (i = 0; i < filter->max_plays; i++)
|
|
filter->plays[i] = G_MAXUINT;
|
|
for (i = 0; i < filter->buffer_bytes; i++)
|
|
filter->buffer[i] = (gchar) 0;
|
|
}
|
|
|
|
static void
|
|
play_on_demand_reset_handler (GstElement * elem)
|
|
{
|
|
GstPlayOnDemand *filter;
|
|
register guint i;
|
|
|
|
play_on_demand_clear_handler (elem);
|
|
|
|
g_return_if_fail (elem != NULL);
|
|
g_return_if_fail (GST_IS_PLAYONDEMAND (elem));
|
|
filter = GST_PLAYONDEMAND (elem);
|
|
|
|
for (i = 0; i <= filter->total_ticks / 32; i++)
|
|
filter->ticks[i] = 0;
|
|
}
|
|
|
|
static void
|
|
play_on_demand_resize_buffer (GstPlayOnDemand * filter)
|
|
{
|
|
register guint i;
|
|
guint new_size, min_size;
|
|
gchar *new_buffer;
|
|
|
|
/* use a default sample rate of 44100, 1 channel, 1 byte per sample if caps
|
|
haven't been set yet */
|
|
new_size = (guint) filter->buffer_time;
|
|
new_size *= (filter->rate) ? filter->rate : 44100;
|
|
new_size *= (filter->channels) ? filter->channels : 1;
|
|
|
|
if (filter->format && filter->format == GST_PLAYONDEMAND_FORMAT_FLOAT)
|
|
new_size *= sizeof (gfloat);
|
|
else
|
|
new_size *= (filter->width) ? filter->width / 8 : 1;
|
|
|
|
min_size =
|
|
(new_size < filter->buffer_bytes) ? new_size : filter->buffer_bytes;
|
|
|
|
new_buffer = g_new (gchar, new_size);
|
|
for (i = 0; i < min_size; i++)
|
|
new_buffer[i] = filter->buffer[i];
|
|
for (i = min_size; i < new_size; i++)
|
|
new_buffer[i] = (gchar) 0;
|
|
|
|
g_free (filter->buffer);
|
|
filter->buffer = new_buffer;
|
|
filter->buffer_bytes = new_size;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "playondemand",
|
|
GST_RANK_NONE, GST_TYPE_PLAYONDEMAND);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"playondemand",
|
|
"Plays a stream at specific times, or when it receives a signal",
|
|
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|